New York City Ballet

Edward Villella of the New York City Ballet performs with an unidentified partner in George Balanchine's ''Nutcracker.''

Portrait of Edward Villella, principle dancer with the New York City Ballet.

Portrait of Edward Villella, principle dancer with the New York City Ballet.

Portrait of ballerina Patricia McBride, principal dancer with the New York City Ballet.

Portrait of Robert Irving, the Orchestra Conductor for the New York city Ballet.

Robert Irving, the Orchestra Conductor for the New York City Ballet, conducting.

Portrait of Suzanne Farrell, principal dancer for the New York City Ballet.

Photographs of dancer and and choreographer Jerome Robbins performing in his own work ''Fance Free.''

Balerina Kay Mazzo of the New York City Ballet performs with Peter Martins in George Balanchine's dance ''Stravinsky Violin Concerto'' which aired on PBS television stations as part of ''Choreography by Balanchine, Part 2'' on Great Performances.

Two images on one sheet: (Left) Edward Villella and Patricia Mc Bride, both of the New York City Ballet, perform in Geroge Balanchine's ''Tarantella'' in Berlin, Germany as part of the PBS television seris ''Great Performances. (Right) Informal portrait of New York City Ballet choreographer George Balanchine.